clk: ux500: Delete error messages for failed memory allocations

Omit extra messages for a memory allocation failure in these
functions.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>

drivers/clk/ux500/clk-prcmu.c

@@ -259,10 +259,8 @@ static struct clk *clk_reg_prcmu(const char *name,
 	}
 
 	clk = kzalloc(sizeof(struct clk_prcmu), GFP_KERNEL);
-	if (!clk) {
-		pr_err("clk_prcmu: %s could not allocate clk\n", __func__);
+	if (!clk)
 		return ERR_PTR(-ENOMEM);
-	}
 
 	clk->cg_sel = cg_sel;
 	clk->is_prepared = 1;